/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              �C/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : LCDTemplate.c
Purpose     : Empty driver
              This driver does no perform any function, but it can be
              used for 2 purposes:
              a) Satisfy all externals so an application can be
                compiled and linked in target hardware even if the
                driver is not already available
              b) Template for a starting point for a new driver.
----------------------------------------------------------------------   
Adapting to a new system (creating a new driver):
  In this case, the first step is to fill the routines 
  LCD_L0_GetPixelIndex, LCD_L0_SetPixelIndex and LCD_L0_Init with
  functionality, which is sufficient to make the hardware work.
  A second (optional) step would be to optimize higher level routines. 
----------------------------------------------------------------------   
Version-Date---Author-Explanation                                        
----------------------------------------------------------------------   
1.00.00 020417 JE     a) Changed to have only to adapt _GetPixelIndex
                         and _SetPixelIndex
0.90.00 020214 JE     a) First release
---------------------------END-OF-HEADER------------------------------
*/

#include <stddef.h>
#include "LCD_Private.h"      /* private modul definitions & config */
#include "GUI_Private.h"
#include "GUIDebug.h"
#include "fb.h"


#if (LCD_CONTROLLER == -1) \
    && (!defined(WIN32) | defined(LCD_SIMCONTROLLER))

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/

#ifndef   LCD_INIT_CONTROLLER
#define LCD_INIT_CONTROLLER()
#endif
#ifndef   LCD_SET_ORG
#define LCD_SET_ORG(x, y) GUI_USE_PARA(x); GUI_USE_PARA(y)
#endif

/*********************************************************************
*
*       Macros for MIRROR_, SWAP_ and LUT_
*/
#if (!defined (LCD_LUT_COM) && !defined(LCD_LUT_SEG))
#if   (!LCD_MIRROR_X && !LCD_MIRROR_Y && !LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) x
#define LOG2PHYS_Y(x, y) y
#elif (!LCD_MIRROR_X && !LCD_MIRROR_Y && LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) y
#define LOG2PHYS_Y(x, y) x
#elif (!LCD_MIRROR_X &&  LCD_MIRROR_Y && !LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) x
#define LOG2PHYS_Y(x, y) LCD_YSIZE - 1 - (y)
#elif (!LCD_MIRROR_X &&  LCD_MIRROR_Y &&  LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) y
#define LOG2PHYS_Y(x, y) LCD_XSIZE - 1 - (x)
#elif ( LCD_MIRROR_X && !LCD_MIRROR_Y && !LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) LCD_XSIZE - 1 - (x)
#define LOG2PHYS_Y(x, y) y
#elif ( LCD_MIRROR_X && !LCD_MIRROR_Y &&  LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) LCD_YSIZE - 1 - (y)
#define LOG2PHYS_Y(x, y) x
#elif ( LCD_MIRROR_X &&  LCD_MIRROR_Y && !LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) LCD_XSIZE - 1 - (x)
#define LOG2PHYS_Y(x, y) LCD_YSIZE - 1 - (y)
#elif ( LCD_MIRROR_X &&  LCD_MIRROR_Y &&  LCD_SWAP_XY)
#define LOG2PHYS_X(x, y) LCD_YSIZE - 1 - (y)
#define LOG2PHYS_Y(x, y) LCD_XSIZE - 1 - (x)
#endif
#else
#if   ( defined (LCD_LUT_COM) && !defined(LCD_LUT_SEG))
#define LOG2PHYS_X(x, y) x
#define LOG2PHYS_Y(x, y) LCD__aLine2Com0[y]
#elif (!defined (LCD_LUT_COM) &&  defined(LCD_LUT_SEG))
#define LOG2PHYS_X(x, y) LCD__aCol2Seg0[x]
#define LOG2PHYS_Y(x, y) y
#elif ( defined (LCD_LUT_COM) &&  defined(LCD_LUT_SEG))
#define LOG2PHYS_X(x, y) LCD__aCol2Seg0[x]
#define LOG2PHYS_Y(x, y) LCD__aLine2Com0[y]
#endif
#endif

/*********************************************************************
*
*       Static functions
*
**********************************************************************
*/

/*********************************************************************
*
*       Draw Bitmap 1 BPP
*/
static void _DrawBitLine1BPP(int x, int y, U8 const GUI_UNI_PTR *p, int Diff, int xsize, const LCD_PIXELINDEX *pTrans) {
    LCD_PIXELINDEX Index0 = *(pTrans + 0);
    LCD_PIXELINDEX Index1 = *(pTrans + 1);
//    x += Diff;
    switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
        case 0:
            do {
                LCD_L0_SetPixelIndex(x++, y, (*p & (0x80 >> Diff)) ? Index1 : Index0);
                if (++Diff == 8) {
                    Diff = 0;
                    p++;
                }
            } while (--xsize);
            break;
        case LCD_DRAWMODE_TRANS:
            do {
                if (*p & (0x80 >> Diff))
                    LCD_L0_SetPixelIndex(x, y, Index1);
                x++;
                if (++Diff == 8) {
                    Diff = 0;
                    p++;
                }
            } while (--xsize);
            break;
        case LCD_DRAWMODE_XOR | LCD_DRAWMODE_TRANS:
        case LCD_DRAWMODE_XOR:
            do {
                if (*p & (0x80 >> Diff)) {
                    int Pixel = LCD_L0_GetPixelIndex(x, y);
                    LCD_L0_SetPixelIndex(x, y, LCD_NUM_COLORS - 1 - Pixel);
                }
                x++;
                if (++Diff == 8) {
                    Diff = 0;
                    p++;
                }
            } while (--xsize);
            break;
    }
}

/*********************************************************************
*
*       Draw Bitmap 2 BPP
*/
#if (LCD_MAX_LOG_COLORS > 2)

static void _DrawBitLine2BPP(int x, int y, U8 const GUI_UNI_PTR *p, int Diff, int xsize, const LCD_PIXELINDEX *pTrans) {
    LCD_PIXELINDEX Pixels = *p;
    int CurrentPixel = Diff;
//    x += Diff;
    switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
        case 0:
            if (pTrans) {
                do {
                    int Shift = (3 - CurrentPixel) << 1;
                    int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
                    LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
                    LCD_L0_SetPixelIndex(x++, y, PixelIndex);
                    if (++CurrentPixel == 4) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            } else {
                do {
                    int Shift = (3 - CurrentPixel) << 1;
                    int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
                    LCD_L0_SetPixelIndex(x++, y, Index);
                    if (++CurrentPixel == 4) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            }
            break;
        case LCD_DRAWMODE_TRANS:
            if (pTrans) {
                do {
                    int Shift = (3 - CurrentPixel) << 1;
                    int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
                    if (Index) {
                        LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
                        LCD_L0_SetPixelIndex(x, y, PixelIndex);
                    }
                    x++;
                    if (++CurrentPixel == 4) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            } else {
                do {
                    int Shift = (3 - CurrentPixel) << 1;
                    int Index = (Pixels & (0xC0 >> (6 - Shift))) >> Shift;
                    if (Index) {
                        LCD_L0_SetPixelIndex(x, y, Index);
                    }
                    x++;
                    if (++CurrentPixel == 4) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            }
            break;
    }
}

#endif

/*********************************************************************
*
*       Draw Bitmap 4 BPP
*/
#if (LCD_MAX_LOG_COLORS > 4)

static void _DrawBitLine4BPP(int x, int y, U8 const GUI_UNI_PTR *p, int Diff, int xsize, const LCD_PIXELINDEX *pTrans) {
    LCD_PIXELINDEX Pixels = *p;
    int CurrentPixel = Diff;
//    x += Diff;
    switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
        case 0:
            if (pTrans) {
                do {
                    int Shift = (1 - CurrentPixel) << 2;
                    int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
                    LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
                    LCD_L0_SetPixelIndex(x++, y, PixelIndex);
                    if (++CurrentPixel == 2) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            } else {
                do {
                    int Shift = (1 - CurrentPixel) << 2;
                    int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
                    LCD_L0_SetPixelIndex(x++, y, Index);
                    if (++CurrentPixel == 2) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            }
            break;
        case LCD_DRAWMODE_TRANS:
            if (pTrans) {
                do {
                    int Shift = (1 - CurrentPixel) << 2;
                    int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
                    if (Index) {
                        LCD_PIXELINDEX PixelIndex = *(pTrans + Index);
                        LCD_L0_SetPixelIndex(x, y, PixelIndex);
                    }
                    x++;
                    if (++CurrentPixel == 2) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            } else {
                do {
                    int Shift = (1 - CurrentPixel) << 2;
                    int Index = (Pixels & (0xF0 >> (4 - Shift))) >> Shift;
                    if (Index) {
                        LCD_L0_SetPixelIndex(x, y, Index);
                    }
                    x++;
                    if (++CurrentPixel == 2) {
                        CurrentPixel = 0;
                        Pixels = *(++p);
                    }
                } while (--xsize);
            }
            break;
    }
}

#endif

/*********************************************************************
*
*       Draw Bitmap 8 BPP
*/
#if (LCD_MAX_LOG_COLORS > 16)

static void _DrawBitLine8BPP(int x, int y, U8 const GUI_UNI_PTR *p, int xsize, const LCD_PIXELINDEX *pTrans) {
    LCD_PIXELINDEX Pixel;
    switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS | LCD_DRAWMODE_XOR)) {
        case 0:
            if (pTrans) {
                for (; xsize > 0; xsize--, x++, p++) {
                    Pixel = *p;
                    LCD_L0_SetPixelIndex(x, y, *(pTrans + Pixel));
                }
            } else {
                for (; xsize > 0; xsize--, x++, p++) {
                    LCD_L0_SetPixelIndex(x, y, *p);
                }
            }
            break;
        case LCD_DRAWMODE_TRANS:
            if (pTrans) {
                for (; xsize > 0; xsize--, x++, p++) {
                    Pixel = *p;
                    if (Pixel) {
                        LCD_L0_SetPixelIndex(x, y, *(pTrans + Pixel));
                    }
                }
            } else {
                for (; xsize > 0; xsize--, x++, p++) {
                    Pixel = *p;
                    if (Pixel) {
                        LCD_L0_SetPixelIndex(x, y, Pixel);
                    }
                }
            }
            break;
    }
}

#endif

/*********************************************************************
*
*       Draw Bitmap 16 BPP
*/
#if (LCD_BITSPERPIXEL > 8)

static void DrawBitLine16BPP(int x, int y, U16 const GUI_UNI_PTR *p, int xsize, const LCD_PIXELINDEX *pTrans) {
    LCD_PIXELINDEX pixel;
    if ((GUI_Context.DrawMode & LCD_DRAWMODE_TRANS) == 0) {
        if (pTrans) {
            for (; xsize > 0; xsize--, x++, p++) {
                pixel = *p;
                LCD_L0_SetPixelIndex(x, y, *(pTrans + pixel));
            }
        } else {
            for (; xsize > 0; xsize--, x++, p++) {
                LCD_L0_SetPixelIndex(x, y, *p);
            }
        }
    } else {
        if (pTrans) {
            for (; xsize > 0; xsize--, x++, p++) {
                pixel = *p;
                if (pixel) {
                    LCD_L0_SetPixelIndex(x, y, *(pTrans + pixel));
                }
            }
        } else {
            for (; xsize > 0; xsize--, x++, p++) {
                pixel = *p;
                if (pixel) {
                    LCD_L0_SetPixelIndex(x, y, pixel);
                }
            }
        }
    }
}

#endif

/*********************************************************************
*
*       Exported functions
*
**********************************************************************
*/

/*********************************************************************
*
*       LCD_L0_SetPixelIndex
*
* Purpose:
*   Sets the index of the given pixel. The upper layers
*   calling this routine make sure that the coordinates are in range, so
*   that no check on the parameters needs to be performed.
*/
void LCD_L0_SetPixelIndex(int x, int y, int PixelIndex) {
    GUI_USE_PARA(x);
    GUI_USE_PARA(y);
    GUI_USE_PARA(PixelIndex);
    /* Convert logical into physical coordinates (Dep. on LCDConf.h) */
#if LCD_SWAP_XY | LCD_MIRROR_X | LCD_MIRROR_Y
    int xPhys = LOG2PHYS_X(x, y);
    int yPhys = LOG2PHYS_Y(x, y);
#else
#define xPhys x
#define yPhys y
#endif
    /* Write into hardware ... Adapt to your system */
    {
        /* ... */
        SetPixelIndex(x, y, PixelIndex);
    }
}

/*********************************************************************
*
*       LCD_L0_GetPixelIndex
*
* Purpose:
*   Returns the index of the given pixel. The upper layers
*   calling this routine make sure that the coordinates are in range, so
*   that no check on the parameters needs to be performed.
*/
unsigned int LCD_L0_GetPixelIndex(int x, int y) {
    LCD_PIXELINDEX PixelIndex;
    GUI_USE_PARA(x);
    GUI_USE_PARA(y);
    /* Convert logical into physical coordinates (Dep. on LCDConf.h) */
#if LCD_SWAP_XY | LCD_MIRROR_X | LCD_MIRROR_Y
    int xPhys = LOG2PHYS_X(x, y);
    int yPhys = LOG2PHYS_Y(x, y);
#else
#define xPhys x
#define yPhys y
#endif
    /* Read from hardware ... Adapt to your system */
    {
        PixelIndex = GetPixelIndex(x, y);/* ... */
    }
    return PixelIndex;
}

/*********************************************************************
*
*       LCD_L0_XorPixel
*/
void LCD_L0_XorPixel(int x, int y) {
    LCD_PIXELINDEX PixelIndex = LCD_L0_GetPixelIndex(x, y);
    LCD_L0_SetPixelIndex(x, y, LCD_NUM_COLORS - PixelIndex - 1);
}

/*********************************************************************
*
*       LCD_L0_DrawHLine
*/
void LCD_L0_DrawHLine(int x0, int y, int x1) {
    if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
        for (; x0 <= x1; x0++) {
            LCD_L0_XorPixel(x0, y);
        }
    } else {
        for (; x0 <= x1; x0++) {
            LCD_L0_SetPixelIndex(x0, y, LCD_COLORINDEX);
        }
    }
}

/*********************************************************************
*
*       LCD_L0_DrawVLine
*/
void LCD_L0_DrawVLine(int x, int y0, int y1) {
    if (GUI_Context.DrawMode & LCD_DRAWMODE_XOR) {
        for (; y0 <= y1; y0++) {
            LCD_L0_XorPixel(x, y0);
        }
    } else {
        for (; y0 <= y1; y0++) {
            LCD_L0_SetPixelIndex(x, y0, LCD_COLORINDEX);
        }
    }
}

/*********************************************************************
*
*       LCD_L0_FillRect
*/
void LCD_L0_FillRect(int x0, int y0, int x1, int y1) {
    for (; y0 <= y1; y0++) {
        LCD_L0_DrawHLine(x0, y0, x1);
    }
}

/*********************************************************************
*
*       LCD_L0_DrawBitmap
*/
void LCD_L0_DrawBitmap(int x0, int y0,
                       int xsize, int ysize,
                       int BitsPerPixel,
                       int BytesPerLine,
                       const U8 GUI_UNI_PTR *pData, int Diff,
                       const LCD_PIXELINDEX *pTrans) {
    int i;
    /* Use _DrawBitLineXBPP */
    for (i = 0; i < ysize; i++) {
        switch (BitsPerPixel) {
            case 1:
                _DrawBitLine1BPP(x0, i + y0, pData, Diff, xsize, pTrans);
                break;
#if (LCD_MAX_LOG_COLORS > 2)
            case 2:
                _DrawBitLine2BPP(x0, i + y0, pData, Diff, xsize, pTrans);
                break;
#endif
#if (LCD_MAX_LOG_COLORS > 4)
            case 4:
                _DrawBitLine4BPP(x0, i + y0, pData, Diff, xsize, pTrans);
                break;
#endif
#if (LCD_MAX_LOG_COLORS > 16)
            case 8:
                _DrawBitLine8BPP(x0, i + y0, pData, xsize, pTrans);
                break;
#endif
#if (LCD_BITSPERPIXEL > 8)
            case 16:
                DrawBitLine16BPP(x0, i + y0, (const U16 *) pData, xsize, pTrans);
                break;
#endif
        }
        pData += BytesPerLine;
    }
}

/*********************************************************************
*
*       LCD_L0_SetOrg
*/
void LCD_L0_SetOrg(int x, int y) {
    LCD_SET_ORG(x, y);
}

/*********************************************************************
*
*       LCD_On / LCD_Off
*/
void LCD_On(void) {
#ifdef LCD_ON
    LCD_ON();
#endif
}

void LCD_Off(void) {
#ifdef LCD_OFF
    LCD_OFF();
#endif
}

/*********************************************************************
*
*       LCD_L0_Init
*
* Purpose:
*   Initialises the LCD-controller.
*/
int LCD_L0_Init(void) {
//    LCD_INIT_CONTROLLER();
    return 0;
}

/*********************************************************************
*
*       LCD_L0_SetLUTEntry
*/
void LCD_L0_SetLUTEntry(U8 Pos, LCD_COLOR Color) {
    GUI_USE_PARA(Pos);
    GUI_USE_PARA(Color);
}

/*********************************************************************
*
*       LCD_L0_GetDevFunc
*/
void *LCD_L0_GetDevFunc(int Index) {
    GUI_USE_PARA(Index);
    return NULL;
}

#else

void LCDTemplate_c(void);

void LCDTemplate_c(void) {} /* avoid empty object files */



#endif /* (LCD_CONTROLLER undefined) */
